Her held-back hairstyle came from the accessory that Raven intended to give her. If Jeff had not given it to her yet, then that explains her current hairstyle. This was also her hairstyle in the flashback/nightmare given by Horror's Hand. Example:

Ah. Mimi wields a mean steak tenderizer. Among many other things, as we have seen.

A Demon vs Vampire fight? Yeah, have we seen that before? Even though Mina has a steak and a mallet to her face, at least she can still be more Awesome than a Cullen -- but then, I've already gathered that doesn't take much.

Fryingeggrolls123 wrote:My guess Is that Mimi is gonna fight her "dad" and Minnie becomes Minnie in afterbirth and Mandy has a pot belly with mandy and daniela but its just a guess

first off spoilers:I think you mean "manny and danni" instead of "mandy and daniela" also you said minnie will become minnie which makes absolutely no sense along with you trying to ruin others fun my mentioning Afterbirth.